Originally Posted by http://www.mobipocket.com/en/DownloadSoft/DownloadManualInstall.asp

Für MacOs und Linux User:
Mobipocket Reader is not supported on Mac or Linux systems, but you can install Mobipocket Reader on your PDA/smartphone via a Mac or Linux by downloading an individual installation package for your device:

That's why it's a cool thing to use iLiad's java viewer on a Linux PC: